[DOCS] Fix "Wait for Snapshot" link in ILM actions reference (#53269)

Corrects an anchor for the `Wait for Snapshot` action, which previously linked to the `Delete` action.

docs/reference/ilm/policy-definitions.asciidoc

@@ -113,7 +113,7 @@ policy definition.
   - <<ilm-allocate-action,Allocate>>
   - <<ilm-freeze-action,Freeze>>
 * Delete
-  - <<ilm-delete-action,Wait For Snapshot>>
+  - <<ilm-wait-for-snapshot-action,Wait For Snapshot>>
   - <<ilm-delete-action,Delete>>
 
 [[ilm-allocate-action]]